Annual report pursuant to Section 13 and 15(d)

Intangible Assets, Net - Additional Information (Details)

v3.21.1
Intangible Assets, Net - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]      
Intangible amortization expense $ 187,000 $ 88,000 $ 61,000